APPLE GROWING 



Way to measure it. So also fifty pounds of fresh 

 burned stone lime should be placed in a barrel 

 — in this case in the bottom of the barrel rather 

 than in a sack — just covered with water and 

 allowed to slake, more water being added as 

 required up to fifty gallons. If too much water 

 is added to the lime at the first it will be 

 '' drowned " and its slaking checked. These 

 two stock mixtures, each gallon containing one 

 pound of the copper sulphate or one pound 

 of the lime, are then mixed together. 



It is well to fill the tank about half full of 

 water, then put in the required amount of the 

 copper sulphate, and after stirring well add the 

 lime milk. It is a good plan to add an excess of 

 lime as it minimizes the danger of burning and 

 aids the mixture in sticking to the leaves well. 

 If one is sure that he has at least as much lime, 

 or an excess of lime, it will not be necessary 

 to test the mixture, but if he is not, a simple 

 test may be made with ferro-cyanide of potas- 

 sium, obtained at a drug store. A few drops 

 of this mixture will disappear if the lime is 

 equal or in excess of the copper sulphate, that 

 is, it will be neutralized, but if it is not, they will 

 remain a bright purplish red. Bordeaux mix- 

 ture is used in strengths varying from three to 

 ii6 



